Subject: 3.5m Night Log 20171218
From: dembicky@apo.nmsu.edu
Date: Tue, 19 Dec 2017 13:37:27 +0000 (UTC)
                      Apache Point Observatory
                      3.5m Telescope Night Log
                      Monday, December 18, 2017
                                                           ACTUAL
 ASTRONOMER      OBSERVER(S)            INSTRUMENT     START  FINISH
--------------------------------------------------------------------
M.Bentz           M.Bentz               DIS            --:--   --:--
P.Szkody          P.Szkody              DIS            21:09   00:09
E.Bellm           M.Graham              DIS            00:10   02:54
   INST       SCHEDULED     WEATH     EQUIP      OBS     NOT USED
 I/ROW/DN   START  FINISH   D    B    D    B    D    B    D    B
 ----------------------------------------------------------------
GS01/R     17:09   18:09   0.4  0.6   0    0   0.0  0.0   0    0
UW10/R     18:09   00:10   3.0   0    0    0   3.0  0.0   0    0
UW04/R     00:10   06:52   4.0   0    0    0   2.7  0.0   0    0
note: scheduled times listed include instrument change time
              ------------- ACTIVITY LOG --------------
Observing Specialist: J.Dembicky
Humidity and clouds kept us closed at the start of the night.  Then skies cleared and humidity dropped and we needed to wait for the primary to drop below freezing (about an hour).  After that we were on the sky for the remainder of the night.
We gave up at 05:55
Telescope left parked due south to remove any remaining snow/ice on the roof.  I also left the pit stop button out, in case the day staff needs to move the telescope.  All of the other (normal) stop buttons are engaged.
                    ------- FAILURE LOG -------
PROG   INST   FAILURE MODE     TIME
    (SEDFNVOG)   TI/SHU    START  FINISH  DESCRIPTION
----------------------------------------------------------------------
            ---------------- FOCUS LOG ---------------
Time  Instrument  Focus     Az  El  Temp Strc Prim  Sec  Air  filt  FWHM
--------------------------------------------------------------------------
 21:16 dcamera    357(   10) 142  60  -2.2 -1.0 -0.5 -1.0 -2.3   --  1.20
 22:37 dcamera    482(   86) 215  66  -1.4 -1.8 -1.2 -1.9 -1.9   --  1.30
 00:13 dcamera    471(   79) 228  53  -0.4 -1.9 -1.2 -1.9 -1.1   --  1.70
               ------------- WEATHER LOG ----------------
                                   Wind                      Precip.or
     Time   Temp F Dewp F  MPH  Direction    Dust    Sky    Conditions
    ------------------------------------------------------------------
     16:00    30    28      9   263    (W)          cloudy    humid
     17:00    29    28      6   263    (W)          cloudy    humid
     18:00    28    28      7   263    (W)          cloudy     fog
     19:00    28    27      7   244  (WSW)         ptly cldy  humid
     20:00    28    24      9   222   (SW)        mstly clr    none
     21:00    28    21      7   263    (W)           clear     none
     22:00    29    21      8   305   (NW)    652    clear     none
     23:00    30    20      8   273    (W)    486    clear     none
     00:00    32    21      8   240  (WSW)    211    clear     none
     01:00    32    20      7   266    (W)    191 mstly clr    none
     02:00    32    18      5   259    (W)    184  ptly cldy   none
     03:00    31    19      5   255  (WSW)    221   cloudy     none
     04:00    30    19      7   264    (W)    228   cloudy     none
     05:00    27    19      9   270    (W)    666 mstly cldy   none
     06:00    27    18      8   291  (WNW)    695  ptly cldy   none
     Note: the wind was coming from the azimuth listed.
     The convention used is north=0 degrees, east=90 degrees.
     The dust count is particles > 1u per 0.1 cubic feet.
                          TELESCOPE STATUS
    Telescope drives operational. Current TCC version: 1.2.4
    Current TUI version: 2.6.0